DBPapers
DOI: 10.5593/SGEM2016/B42/S19.036

CLIMATE VARIABILITY OF THE RAINY PERIODS BETWEEN 1961 AND 2013, IN MARAMURES, ROMANIA

T. Tudose, E. Serban, G.V. Harpa
Wednesday 7 September 2016 by Libadmin2016

References: 16th International Multidisciplinary Scientific GeoConference SGEM 2016, www.sgem.org, SGEM2016 Conference Proceedings, ISBN 978-619-7105-64-3 / ISSN 1314-2704, June 28 - July 6, 2016, Book4 Vol. 2, 275-282 pp

ABSTRACT
This paper analyzed the spatial and temporal variability of the rainy periods that occurred in the county of Maramureş. In this regard, daily precipitation data have been used from 4 weather stations, for the period 1961-2013. In the first stage the homogeneity of the daily data set has been analyzed, based on Pettitt, Standard normal homogeneity, Buishand and von Neumann tests, at the 1% significance level. The analyzed data belonged to Class 1 („useful”), as they reject the null hypothesis of 3 out of the 4 mentioned tests. Subsequently, the annual, monthly and seasonal number of rainy periods has been analyzed, the length of the periods, their frequency depending on length and their spatial and temporal variability. Based on the CurvExpert 1.37 program, the trend of the annual number of rainy periods depending on their duration was studied. The result was a total number of over 8100 periods, for the 4 stations. The number of rainy periods increases from the west to the east, once with the growth of land altitude. During a year may occur, on average, between 37-40 periods with an average length of 4-4.5 days. The length of the rainy periods varies between 2-35 days. The most periods are recorded in the intervals May-July and December-January. The most periods lasting ≥ 10 days, occurred in the decade 2001-2010 or 1961-1970.

Keywords: rainy period, day with precipitation, length, frequency, trend.